why isn't sportswoman acceptable, it's a more literal translation and makes sense.
Из needs Genitive AND please. Please. Please. Remove names like Dzenny that are really hard for neither English or Russian native speaker hard to write down.
Jenny (Дженни) is an English name. It's useful to know how to use nondeclinable names in Russian, since lots of English speakers will have names that are foreign in a way that can't decline.